Mitchell Defense DOC 10.3" MD15 | .300 BLK SBR
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The Mitchell Defense DOC 10.3" MD15 .300 Blackout SBR is a short-barreled rifle configured for suppressed and unsuppressed .300 BLK applications. It features a 10.3-inch stainless steel barrel with a 1:5 twist rate and an adjustable pistol-length direct-impingement gas system, allowing the operating system to be tuned for different ammunition and suppressor configurations. The rifle also uses an MD Carbon Cutter BCG with ArmorLube coating and a black DualCool CP1 M-LOK handguard with an air-gapped structure designed to reduce heat transfer to shooter-contact surfaces.
With its 10.3-inch barrel, the DOC MD15 provides additional barrel length compared with ultra-compact .300 Blackout SBR configurations while retaining a compact overall platform. The rifle incorporates a carbine-length buffer tube with a lightweight buffer spring, along with a Reptilia Puller, Radian Talon safety selector, ambidextrous bolt release, two-stage trigger, B5 stock and furniture, and QD end plate. This configuration also includes three Lancer magazines and one black Ryker Sling.
Specifications
- Caliber: .300 Blackout
- Barrel Length: 10.3 in
- Barrel Material: Stainless Steel
- Twist Rate: 1:5
- Operating System: Direct Impingement
- Gas System Length: Pistol-Length
- Gas System: Adjustable
- Handguard: Mitchell Defense DualCool CP1
- Handguard Design: Air-Gapped Thermal Barrier
- Accessory Interface: M-LOK
- Handguard Color: Black
- Bolt Carrier Group: MD Carbon Cutter BCG
- BCG Coating: ArmorLube
Components & Included Accessories
- Buffer Tube: Carbine Length
- Buffer Spring: Lightweight
- Charging Handle: Reptilia Puller
- Safety Selector: Radian Talon
- Bolt Release: Ambidextrous
- Trigger: Two-Stage
- Stock / Furniture: B5
- End Plate: QD
- Included Magazines: 3 Lancer Magazines
- Included Sling: Black Ryker Sling
| Dimensions | 1x1x1 |
|---|---|
| Manufacturer | Mitchell Defense |
| Coating Type | Black Anodized |




